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Preventing water crises
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Preventing water crises

Garbage from Asia has inundated an island in the middle of the Atlantic

Researchers from Canada and Africa have found a massive amount of plastic bottles, originating form Asia, mainly from China, on Inaccessible Island, located in the South Atlantic Ocean. The bottles were probably discarded into the water and then washed up on the island from cargo ships passing the region.

The island is considered a World Heritage site, but the huge amount of waste is increasingly causing problems. An analysis of several thousand pieces of garbage by scientists at the University of Cape Town (UCT) has shown that plastic bottles are the most frequent type of waste, and their number has been increasing at an annual rate of 14.7 percent since the 1980’s.

According to a study published in the Proceedings of the National Academy of the Sciences of the USA (PNAS), researchers had previously thought that most of the waste originates from the mainland, but it seems the theory is about to be refuted.

The plastic waste washed up on Inaccessible Island originate from Asia, primarily China, and the analysis also shows that they are relatively new, so they couldn’t have reached those waters with oceanic currents. All that suggests that they are being thrown off ships. What’s more, in the last year, commercial shipping from South America towards Asia has seen a significant upturn.

Researchers were surprised by the discovery in particular because the fleets of commercial ships have concluded an international agreement prohibiting the dumping of waste from ships Photo: UCT

Source: Index.hu

Further information: UCT News

The Pacific cleanup may succeed

The system created by a Dutch inventor called System 101, whose first trial run, conducted a year ago, had failed, has started collecting plastic waste on the Pacific again.

Hungarian innovation to filter pharmaceutical residues

Many studies worldwide have shown that the active compounds of medications are released into the environment with wastewater and can easily be reintroduced into the human food chain from there. Filtering these residues out is an increasingly acute concern, but, thankfully, the world of science has already responded to the problem.

Pharmaceutical residues in Hungarian waters

In Hungary, too, the active ingredients of various medications are discharged continuously into the environment with wastewater, so they can now be detected in surface and underground waters as well as in soils.

What can we do against pharmaceutical residues in our waters?

After being introduced into human and animal organisms, some pharmaceutical compounds are secreted via urine unchanged, and then, through wastewater, those compounds may reach surface waters that serve as drinking water supplies, representing a risk for both aquatic ecosystems and for the purity of drinking water.

Microplastics from an unexpected source

We’ve known for a long time that plastic food packaging, wearing car tyres and clothing made of synthetic fibres are all sources of microplastic pollution. However, a new study has identified a new source of pollution in our kitchens, or more precisely in our teacups.

Steroids in the water?

Despite the continuous development of wastewater treatment technologies, the complete removal of synthetic pharmaceuticals using the three-step method currently in use is yet to be achieved. A number of researchers are working to improve the efficiency of the removal of these molecules from the present value of 10 to 30 percent.

EU campaign to clean up beaches worldwide

As part of a campaign launched by the European Union, which culminated on 21 September, International Coastal CleanUp Day, marine waste washed up on beaches is collected in more than 80 countries on all inhabited continents, the European Commission has announced.

The creation of the Great Pacific Garbage Patch

This astonishing video is about the creation of the Great Pacific Garbage Patch, which is twice the size of the state of Texas.

Radioactive water to be dumped in the Pacific Ocean?

On 11 March 2011, Japan suffered a magnitude 9 earthquake, which also impacted the Fukushima Nuclear Power Plant. Since then, more than a million tonnes of radioactive water has been collected from the damaged cooling system of the plant, but the tanks will be filled to capacity by 2022.

The cycle of active pharmaceuticals: from the sewage system onto our tables

The set of problems around pharmaceutical residues is extremely complex: the active compounds that are released can reach not only drinking water but also our food. Luckily, scientists have started investigating the problem, and the development of technologies able to offer a solution is also under way.

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